Annually, in the autumn-winter period there is an increase in the incidence of influenza and acute viral respiratory infections (further, ARVI), which account for 95% of all infectious diseases. Each year globally, the flu takes up to 500 thousand lives, every tenth adult and every third child gets sick, and every seventh patient suffers from serious complications.
Under current conditions, the most effective and economically justified measure of protection against influenza is vaccine prevention. The use of vaccination against influenza reduces the incidence rate, helps mitigate the severity of the disease, and prevents the development of severe complications and deaths.
Vaccination of 70-80% of members of any group reduces the incidence of influenza in this group to single cases or even completely excludes it, and immunisation of 40% of the population in the territory excludes epidemics.
Vaccination against influenza is seasonal: it is best to do this in September-October, so that by the beginning of an epidemic in December and January an effective immune defence has already been developed.